Home / 15,017.96-20,723.82-8,302.34

Finding the Fourth Proportional to 15,017.96, 20,723.82 and 8,302.34

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Solution

The fourth proportional to 15,017.96, 20,723.82 and 8,302.34 is: 11,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.96 : 20,723.82 = 8,302.34 : x
  2. Step 2: Convert to fraction form
    15,017.96/20,723.82 = 8,302.34/x
  3. Step 3: Cross multiply
    15,017.96x = 20,723.82 × 8,302.34
  4. Step 4: Simplify right side
    15,017.96x = 172,056,199.74
  5. Step 5: Solve for x
    x = 172,056,199.74/15,017.96
  6. Step 6: Final answer
    x = 11,456.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.